Failure to do so can result in serious injury.
SAVE THIS MANUAL.
For technical questions or replacement parts, please call 1-800-444-3353.
SAVE THIS MANUAL
Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning
procedures. Write the product’s serial
number in the back of the manual near the
assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and
dry place for future reference.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling,
and all other information
provided with this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
General Safety Warnings
WARNING Read all safety warn-
ings and instructions. Failure to follow
the warnings and instructions may result in
electric shock, re and/or serious injury.
Save all warnings and instructions for
future reference.
1. Work area safety
Keep work area clean and well lit. a.
Cluttered or dark areas invite acci-
dents.
Do not operate the Scale in explo-b.
sive atmospheres, such as in the
presence of ammable liquids,
gases or dust. Line operated and
battery operated equipment create sparks which may ignite dust or
fumes.
Keep children and bystanders c.
away while operating the Scale.
Distractions can cause you to lose
control.
Electrical safety2.
The Power Plug (17) must match a.
the outlet. Never modify the Plug
in any way. Do not use any additional adapter plugs with the Scale.
Unmodied plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with grounded b.
surfaces such as pipes, radiators,
Do not expose the Scale to rain or c.
wet conditions. Water entering the
Scale will increase the risk of electric
shock.
Do not abuse the Power Cord d.
(17). Never use the Cord for carrying, pulling or unplugging the
Cord. Keep the Cord away from
heat, oil, sharp edges or moving
parts. Damaged or entangled Cords
increase the risk of electric shock.
When operating the Scale out-e.
doors, use an extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the
risk of electric shock.
If operating the Scale in a damp f.
location is unavoidable, use a
Ground Fault Circuit Interrupter
(GFCI) protected supply. Use of
a GFCI reduces the risk of electric
shock.
Personal safety3.
Stay alert, watch what you are do-a.
ing and use common sense when
operating the Scale. Do not use
the Scale while you are tired or un-
der the inuence of drugs, alcohol
or medication. A moment of inattention while operating the Scale may
result in serious personal injury.
Use safety equipment. Always b.
wear eye protection. Safety equip-
ment such as ANSI-approved safety
impact goggles will reduce personal
injuries.
Prevent unintentional starting. c.
Ensure the Power Switch (15) is
in the off-position before connect-
ing to power source and/or battery pack, picking up or carrying
the tool. Carrying battery operated
equipment with your nger on the
Power Switch or energizing equipment that have the Power Switch on
invites accidents.
Do not overreach. Keep proper d.
footing and balance at all times.
This enables better control of the
Scale in unexpected situations.
Scale use and care4.
Do not force the Scale. Use the a.
correct Scale for your application.
The correct Scale will do the job better and safer at the rate for which it
was designed.
Do not use the Scale if the Power b.
Switch (15) does not turn it on and
off. Any equipment that cannot be
controlled with the Power Switch is
dangerous and must be repaired.
Unplug the Power Cord (17) before c.
making any adjustments, changing
accessories, or storing the Scale.
Such preventive safety measures
reduce the risk of starting the equip-
ment accidentally.
Store idle equipment out of the d.
reach of children and do not allow
persons unfamiliar with the Scale
or these instructions to operate the equipment. Line powered
and battery powered equipment are
dangerous in the hands of untrained
users.
Maintain the Scale. Check for e.
misalignment or binding of moving parts, breakage of parts and
any other condition that may affect
the Scale’s operation. If damaged,
have the Scale repaired before
Do not exceed the Scale’s maximum 3.
weight capacity of 330 pounds.
Use the Scale in accordance with f.
these instructions, taking into account the working conditions and
the work to be performed. Use of
the Scale for operations different from
those intended could result in a haz-
ardous situation.
Battery tool use and care5.
Use this Scale only with speci-a.
cally designated Batteries. Use of
any other Battery may create a risk of
injury and re.
Under abusive conditions, liquid b.
may be ejected from the Battery
(16). Avoid contact. If contact ac-
cidentally occurs, ush with water.
If liquid contacts eyes, additionally
seek medical help. Liquid ejected
from the Battery may cause irritation
or burns.
Service6.
Have your Scale serviced by a a.
qualied repair person using only
identical replacement parts. This
will ensure that the safety of the
equipment is maintained.
Specic Safety Warnings
Use in a dry location only. Risk of 4.
electric shock.
Use on a level, solid surface capable 5.
of supporting the weight of the Scale
and its load.
Do not lean load against display.6.
Level the Scale before use.7.
Wear ANSI-approved safety goggles 8.
during assembly and Battery (18)
replacement.
This Scale is not legal for trade or 9.
postage.
Read this manual before set up and 10.
use of the Scale.
Do not sit or stand on the Scale.11.
Avoid unintentional starting. Prepare 12.
to begin work before turning on the
Scale.
Do not leave the Scale unattended 13.
when it’s Power Cord (17) is plugged
into an electrical outlet. Turn off the
equipment, and unplug the Power
Cord from its electrical outlet before
leaving.
Maintain labels and nameplates on 1.
the Scale. These carry important
safety information. If unreadable or
missing, contact Harbor Freight Tools
for a replacement.
This Scale contains a sealed lead 2.
Battery (16). Do not dispose of an
old Battery in re to avoid explosion
and possible personal injury. Recycle
old batteries according to local solid
waste authority procedures.
This product is not a toy. Keep it out 14.
of reach of children.
People with pacemakers should 15.
consult their physician(s) before use.
Electromagnetic elds in close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure. In addition, people with
pacemakers should:
grounded. Ground Fault Circuit Interrupter (GFCI) should also be implemented – it prevents sustained electrical shock.
CONTAINS SEALED LEAD 16.
BATTERY. BATTERY MUST BE
RECYCLED.
WARNING: Handling the cord on 17.
this product will expose you to lead,
a chemical known to the State of
California to cause cancer, and birth
defects or other reproductive harm.
Wash hands after handling. (California Health & Safety Code § 25249.5,
et seq.)
WARNING: This product contains 18.
lead, which is a chemical known to
the State of California to cause cancer and birth defects or other reproductive harm. (California Health &
Safety Code § 25249.5, et seq.)
GROUNDING
TO PREVENT
ELECTRIC SHOCK
AND DEATH FROM
INCORRECT GROUNDING
WIRE CONNECTION:
Check with a qualied
electrician if you are in doubt
as to whether the outlet is
properly grounded. Do not
modify the Power Cord Plug
provided with the Scale.
Never remove the grounding
prong from the Plug. Do not
use the if the Power Cord or
Plug is damaged. If damaged,
have it repaired by a service
facility before use. If the Plug
will not t the outlet, have a
proper outlet installed by a
qualied electrician.
Grounded Tools: Tools with Three
Prong Plugs
The warnings, precautions, and in-19.
structions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
SAVE THESE
INSTRUCTIONS.
Equipment marked with “Grounding 1.
Required” have a three wire cord and
three prong grounding Plug. The
Plug must be connected to a properly
grounded outlet. If the equipment
should electrically malfunction or
break down, grounding provides a
low resistance path to carry electricity
away from the user, reducing the risk
The grounding prong in the Plug is 2.
connected through the green wire
inside the Cord to the grounding
system in the equipment. The green
wire in the Cord must be the only
wire connected to the equipment’s
grounding system and must never be
attached to an electrically “live” terminal.
(See 3-Prong Plug and Outlet.)
The equipment must be plugged into 3.
an appropriate outlet, properly installed and grounded in accordance
with all codes and ordinances. The
Plug and outlet should look like those
in the preceding illustration.
(See 3-Prong Plug and Outlet.)
Extension Cords
Grounded 1. equipment require a three
wire extension cord. Double Insu-lated equipment can use either a two
or three wire extension cord.
As the distance from the supply outlet 2.
increases, you must use a heavier
gauge extension cord. Using extension cords with inadequately sized
wire causes a serious drop in voltage,
resulting in loss of power and possible tool damage.
The smaller the gauge number of the
wire, the greater the capacity of the
cord. For example, a 14 gauge cord
can carry a higher current than a 16
gauge cord. (See Table A.)
When using more than one exten-3.
sion cord to make up the total length,
make sure each cord contains at
least the minimum wire size required.
(See Table A.)
If you are using one extension cord 4.
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (See Table A.)
If you are using an extension cord 5.
outdoors, make sure it is marked with
the sufx “W-A” (“W” in Canada) to
indicate it is acceptable for outdoor
use.
Make sure the extension cord is prop-6.
erly wired and in good electrical condition. Always replace a damaged
extension cord or have it repaired by
a qualied electrician before using it.
Protect the extension cords from 7.
sharp objects, excessive heat, and
damp or wet areas.
subheadings therein before set
up or use of this product.
V~
A
n0 xxxx/min.
SPECIFICATIONS
Electrical
Requirements
Maximum
Weight
Capacity
Main Functions
Control
Panel Button
Indicators
Additional
Features
Underwriters Laboratories, Inc.
Volts Alternating Current
Amperes
No Load Revolutions per Minute
(RPM)
Input: 110 VAC~ / 60 Hz
Battery Type: 6 VDC Sealed Lead Acid
Power Switch: ON/Off Rocker Switch
Power Plug: 3-Prong, Grounded
330 Pounds (150 kilograms)
Auto Turn Off When Under Voltage
Count
Limit Set
Auto Zero Track
Keyboard Calibration
Overload Alarm
ADD, C, HOLD, FUNC, ZERO/TARE, UNIT
Four Adjustable Feet & Level Indicator for
Leveling of Scale.
Built-In Rechargeable Battery.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch (15) to
its off position and unplug the
Power Cord (17) before
performing any inspection,
maintenance, or cleaning
procedures.
Assembly Instructions
DISPLAY
(1)
STEEL TUBE
(4)
FIGURE A
STEEL BASE
(5)
BOLTS
(6)
UNPACKING
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown on the cover of this manual as soon
as possible.
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section
at the beginning of this manual
including all text under
Attach the Display (1) and Steel Tube
(4) to the Steel Base (5) of the Scale
using four Bolts (6). (See Figure A.)
Scale Set Up
Place the Scale on a clean, dry, at, 1.
level surface capable of supporting
the weight of the Scale and all objects to be weighed.
The work area must be free of vibra-2.
tion, strong air currents, direct sunshine, and high temperature.
1. Plug the Power Cord/Plug (17) into
the nearest 110 volt, grounded,
electrical outlet. Then turn the Power
Switch to its “ON” position.
IMPORTANT: Make sure there is no
load on the Scale when turning the
Power Switch on. (See Figure D.)
For best accuracy, allow the Scale to 2.
warm up for ten minutes before applying weight.
When turned on, the Scale will self-3.
check the rechargeable Battery (16)
and display “dc x.xxx”. If necessary,
the Scale will automatically enter the
Battery into a charging mode.
When using the Battery (16) to pow-•
er the Scale, and the Battery voltage is lower than 5.4V, the Scale
will turn off automatically. In this
event, plug the Power Cord/Plug
into the nearest 110 volt, grounded,
electrical outlet and allow the Battery to charge for at least 8 hours
for full capacity.
After the self-check, the Scale should 4.
automatically set itself at the zero
position. However, the Scale did not
locate the zero position if either of the
following occurs:
Displaying “HHHHHH” and emitting •
an alarm sound, meaning the zero
position is too high.
Displaying “LLLLLL” and emitting •
an alarm sound, meaning the zero
position is too low.
Unit:
Press “UNIT” to choose the unit: Lb.
or Kg. (See Figure E.)
Hold:
Should either of the above events
occur, make sure to check for proper
line voltage and Battery voltage.
Check that the Scale is level, it has
no load, and that its Platform (13) is
not touching any other object(s).
FIGURE E
Zero/Tare
Press the “ZERO/TARE” button the 1.
scale is empty (< 4% F.S.1) and the
scale will read zero at the current
weight. The zero indicator will also
show. (See Figure E.)
Press “ZERO/TARE” when the weight 2.
is positive (> 4% F.S.) and the tare indicator will show. The scale will then
read based on the tare weight.
Press “HOLD” at any time when 1.
weighing. The displayed value will
be locked and will not change with
weight. Meanwhile, the “HOLD” indicator will show. (See Figure E)
Press “HOLD” again to exit the hold 2.
mode.
Note: Under the hold mode, the Scale will
sound an alarm when overloaded although the displayed value does not
change.
Memory Functions:
With a stable weight on the scale, 1.
press “ADD“ to add the displayed
weight to the unit’s memory. (See Figure E.) The M+ indicator will
show and the display will ash
{ADD=__} with the __ being the number of weights in memory and then
read the total accumulated weight
from memory.
Note: The unit will beep twice if the
value is not added (for example if
the weight does not remain constant
enough.)
Press “C” and the cumulative total will 2.
be cleared.
Remove all weight and press the 3.
“ZERO/TARE” button again to exit
tare mode.
1 Full Scale. The full capacity of the scale. For
this item, 330 lb. (150 kg).
Settings
To adjust the backlight brightness, 1.
press “FUNC“ once and {BAC=0_}
will be displayed. The blank is the
brightness of the display backlight.
Press “ZERO/TARE” to change the 2.
brightness. The maximum is 5.
calibration weight, in kg. Leave the
platform empty.
Press “FUNC” after selecting the 3.
brightness to switch to the manual
tare setting mode.
The screen will briey display PStAtE 4.
and then display 0000.00 Enter the
tare weight in kg using the “UNIT”
button to select the digit and the
“ZERO/TARE” button to change the
digit. Once the tare is selected, press
the “ADD” button to return to normal
weighing mode.
Calibration:
Note: Calibration is a precise procedure.
If done improperly, it can cause the
scale to become inaccurate. If you
are not comfortable doing the calibra-
tion yourself, a qualied technician
should calibrate the scale.
Turn the scale off. Calibration must 1.
be started when rst turning on the
scale.
Press “UNIT“ to select the digit you 5.
wish to alter. The selected digit ashes. Press “ZERO/TARE“ to change
the desired digit. Press “ADD” to nish entering the calibration weight.
Wait for the Indicator to display 6.
“0.00”, this may require a minute or
two. Then, put the calibration weight
on the Platform.
If the value is the same as the cali-7.
bration weight, press “HOLD”. If not,
press “ZERO/TARE”, then “HOLD“ to
exit calibration mode, turn off scale
and retry calibration.
Error Information:
“Ad_Err” =1. Can not receive the
weight signal from the Sensor (8).
“------” =2. Zero position is too high or
the value is too high.
Connect the scale to an 120 V~ re-2.
ceptacle and remove all weight from
the scale.
Turn on the Scale. Quickly press 3.
“ZERO/TARE”, “UNIT”, then “ZERO/
TARE” after the scale displays
012345, but before the scale is ready
to weigh. The scale will enter calibration mode and display the original
maximum capacity value and the
division. These are factory settings
and should not be altered. Press
“ADD” to continue.
The display will now read “-CAL-” 4.
rst, then “0150.00”. Now input the
“___” =3. Zero position is too low or
the value is too low.
explained in this manual
must be performed only by a
qualied technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch (15) of
the Scale to its “OFF” position
and unplug the unit’s Power
Cord (17) from its electrical
outlet before performing any
inspection, maintenance, or
cleaning procedures.
TO PREVENT SERIOUS
INJURY FROM EQUIPMENT
FAILURE:
Do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.
BATTERY
(16)
FIGURE F
• Unscrew and remove the six
Screws (18) located on the back
panel of the Display (1).
(See Figure F.)
Remove the front portion of the Dis-•
play (1) to expose the Battery (16).
(See Figure F.)
Remove the old Battery (16) and •
replace with a new Battery of the
same type. Then, re-attach the
front portion of the Display (1) to
the back portion of the Display and
secure using the six Screws (18).
(See Figure F.)
BEFORE EACH USE: Inspect 1.
the general condition of the Scale.
Check for loose screws, misalignment
or binding of moving parts, cracked
or broken parts, Battery leakage, and
any other condition that may affect its
safe operation.
BATTERY REPLACEMENT:2. A Battery that fails to accept a charge is
an indication the Battery should be
replaced. To replace the Battery:
IMPORTANT: The old Battery (16) •
must be recycled according to local
solid waste authority instructions.
AFTER USE: 3. Clean all external
surfaces of the Scale with soft, clean
cloth. Do not use solvents. Do not
immerse the Scale in liquid.
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from
the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,
criminal activity, improper installation, normal wear and tear, or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental,
contingent, special or consequential damages arising from the use of our product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our inspection veries the defect, we will either repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine there is no defect, or that the defect
resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.
This warranty gives you specic legal rights and you may also have other rights
which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY
CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS
THERETO.